Adolf gentzsch



UNITED STATES PATENT OFFICE.

A-DOLF GENTZSCH, OF VIENNA, AUSTRIA-HUNGARY.

INSULATING COMPOUND,

SPEGIFIO'ATION forming part of Letters Patent N 0. 517,452, dated April3, 1894. APPHOMiOH filed October 7, 1893- Serial No- 487,47'7. (N0specimens.)

To all whom it may concern:

Be it known that I, ADOLF GENTZSOH, a subject of the Emperor ofAustria-Hungary, residing at Vienna, in the Province of Austria andEmpire of Austria-Hungary, have invented certain new and usefulImprovements in an Insulating Compound for Electrical Purposes, of whichthe following is a specification.

Attempts have heretofore been made to extract insulating substances forelectrical pu rposes from mineral matters but with only little success;therefore it has always been necessary to have recourse to vegetablesubstances whenever it was desired to produre a good and lastinginsulating material with high insulating power.

It has been well known that it would be' possible to create a usefulinsulating material if it were possible to oxidize the mineral oils. Itis well known also that natural oxidized mineral oils exist as forinstance; ozokerite, asphalt, amber, idrialite, hatchettlne, &c., buttheseare brittle and hygroscopic and are possessed of almost noinsulating power whatever.

The present process refers to the manufacture of an insulating materialfrom the substances mentioned but all elements that could injure theirinsulating quality are removed in the manner as will be described laterso that I obtain an insulating mass which not only equals in quality theoxidized vegetable oils but is greatly superior to the same.

In carrying out my method the fossile resins, ozokerite, asphalt andamber are submitted to a kind of distillation. This is effected in aboiler or preferably in a distilling still; by heating each of the abovenamed bodies or a mixture of the same to drive off the water, the lightand heavy oils and the gas. The heating of the mass is continued untilno es caping of gas or vapors or oils can be observed,

and the remaining mass is then allowed to cool oif. In this state itpresents a buttery appearance and it possesses a malleable consistencyand it can be used either alone or mixed with other substances forinsulating cables and connecting couplings.

For usinga mixture of the above named fossile resins the followingproportions can be recommended as an example: about fifty partsozokerite, about forty-five parts amber, about five parts asphalt.

I claim' An insulating compound consisting of the extract from fossilresins as ozokerite, asphalt and amber, in the proportions set forth,from which the gas, vapors and oils have been removed, substantially asdescribed.

In witness whereof I hereunto set my hand in presence of two witnesses.

ADOLF GENTZSCH.

